US3938560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the mechanical operation of thread or yarn guides
Assignee: Grosse Webereimaschinen GmbH
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Filing: 1974-02-26
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Granted: 1976-02-17
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Expires: 1994-02-26
Abstract
Abstract An apparatus for the mechanical operation of thread or yarn guides in textile making machines. The apparatus includes selectors arranged longitudinally of the guides, and by means of pulses supplied from outside, the selectors are adapted, by form-closed engagement with the guides, to prevent and, in the absence of an engagement, to permit the guides being carried along by continuously reciprocating operating means. The apparatus also includes spring means which tend to move the guides out of such an engagement with the selectors as will prevent the guides being carried along by the operating means.
Inventors
- 👤 William Eger Nyboe Lauritsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:34
CPC Classifications
D; D03; D03C; D03C13/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
284 words
An apparatus for the mechanical operation of yarn guides comprising, selectors mounted at one end of the yarn guides, said selectors being operable in response to external pulses to respectively permit and prevent shifting of the said yarn guides from given positions, a pair of locking studs on each of said yarn guides, operating means continuously reciprocating between extreme dead center positions for shifting said yarn guides, said operating means including means for engaging said locking studs for positively shifting said yarn guides in both directions into and out of two extreme positions and a central position, spring means tending to move said yarn guides from said extreme positions, cooperating catch means on said yarn guides and on said selectors for releasably retaining said yarn guides in said extreme positions, said locking studs being adapted in response to the position of the associated selector to be respectively locked to and left unlocked from said operating means, the distance between said catch means on said yarn guides and said locking studs and the distance between said dead center positions of said operating means and said catch means on said selectors being such that as said operating means reaches said dead center positions, said yarn guides are moved a short distance against the action of said spring means whereby a form-closed engagement between said studs and selectors is canceled, said yarn guides being carried along by said operating means in the event that the position of the selector has been changed by an external pulse, while the locking engagement between the yarn guide and selector is only momentarily interrupted and the operating means returns without actuating the respective yarn guides when the selector position remains unchanged.
Claim 2
Independent Claim
284 words
An apparatus for the mechanical operation of yarn guides comprising, selectors mounted at one end of the yarn guides, said selectors being operable in response to external pulses to respectively permit and prevent shifting of the said yarn guides from given positions, a pair of locking studs on each of said yarn guides, operating means continuously reciprocating between extreme dead center positions for shifting said yarn guides, said operating means including means for engaging said locking studs for positively shifting said yarn guides in both directions into and out of two extreme positions and a central position, spring means tending to move said yarn guides from said extreme positions, cooperating catch means on said yarn guides and on said selectors for releasably retaining said yarn guides in said extreme positions, said locking studs being adapted in response to the position of the associated selector to be respectively locked to and left unlocked from said operating means, the distance between said catch means on said yarn guides and said locking studs and the distance between said dead center positions of said operating means and said catch means on said selectors being such that as said operating means reaches said dead center positions, said yarn guides are moved a short distance against the action of said spring means whereby a form-closed engagement between said studs and selectors is canceled, said yarn guides being carried along by said operating means in the event that the position of the selector has been changed by an external pulse, while the locking engagement between the yarn guide and selector is only momentarily interrupted and the operating means returns without actuating the respective yarn guides when the selector position remains unchanged.
Claim 3
Dependent Claim
30 words
An apparatus as claimed in claim 1, wherein the yarn guides in turn are further provided with guide means movable in both directions with the aid of the operating means.
Claim 4
Dependent Claim
30 words
An apparatus as claimed in claim 1, wherein the yarn guides are connectable both individually and groupwise with a number of elements such as hooks, shafts, and heddles or needles.
Claim 5
Dependent Claim
39 words
An apparatus as claimed in claim 3, wherein said elements connectable with said yarn guides are provided with flexible extensions running in flexible guide means and connecting the respective element with the yarn guide actuated by the operating means.
Claim 6
Dependent Claim
26 words
An apparatus as claimed in claim 4, wherein said flexible guide means and said elements are relatively shiftable in order to permit changing their relative positions.
Claim 7
Dependent Claim
122 words
An apparatus as claimed in claim 1, wherein said operating means comprises bars movable by rockers in both directions and through which the yarn guides pass, said bars each comprising pairs of adjacent profile members engaging and relatively shiftable by fixed cam members, said profile members of said bars being formed with openings which in one position of shift permit the bars to be moved along said yarn guides without engaging with said locking studs of said yarn guides, in another position produce engagement upon movement in both directions, in a third position produce engagement with said locking studs upon movement in one direction only and in a fourth position produce engagement with said locking studs upon movement in the opposite direction.
Claim 8
Dependent Claim
24 words
An apparatus as claimed in claim 2 further comprising relatively shiftable lateral support means having openings therein, said yarn guides passing through said openings.
Claim 9
Dependent Claim
38 words
An apparatus as claimed in claim 7, wherein said lateral support means comprises loose strips formed with recesses, and wherein rows of such strips separated by preferable resilient spacers are provided on different levels along said guide means.
Claim 10
Dependent Claim
37 words
An apparatus as claimed in claim 7 wherein the guide means and the lateral support means arranged at said yarn guides are reversible whereby it is possible, for instance in weaving machines, to modify the pattern produced.
References Cited (Backward Citations)
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Cited
US1944369A
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US3451129A
Cited
US3810492A
Cited
US3828826A
Cited
US3835894A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-16 | 1979-08-18 | 1980-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-16 | 1983-08-18 | 1984-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-16 | 1987-08-18 | 1988-02-17 | $7700.00 | Window Closed / Lapsed |